Updated 2 Nov 2026 · recomputed nightly
Is April 2027 a good month to visit London?
Calm — the typical April day in London is calmer than 70% of its year.
If you are coming for something that only happens in April, that is the trade. If not, February is quieter.
Calm · Lively · Busy · Packed rank a day against London's own year — not a headcount.
This month's verified events: TCS London Marathon (first two-day edition) (24–25).
April 2027 is a shoulder month in London: cool and showery, around 14°C / 57°F with rain on about 8 days, Calm on 17 of 30 days — 12 days run Busy or Packed.
Mostly yes. The typical April day in London is Calm, and 12 of the 30 days in our window run Busy or Packed. Expect around 14 °C by day, with rain on about 8 days. The crowd comes with the school holidays in France and Germany. Cruise ships call on 7 of the 30 days. Ideal Home Show 2027 falls on 2–11 April. Late April is the month's quietest stretch in London — the typical day at 29%, against 76% in early April. The crush is at Westminster Bridge and Parliament Square; the quiet is at the royal parks' chain. The calmest day is Monday 12 April, the busiest Sunday 4 April.
In short, a solid middle-ground pick.
Among the 12 months we forecast for London, April ranks 5th for crowd pressure. Its heaviest day is Sun 4 Apr, busier than 99% of the year; its lightest is Mon 12 Apr at 27%.
⚠︎ Weekends run heavy — the 3rd, 4th, 10th, 11th, 24th and 25th all sit Busy or Packed. If your dates can flex, a midweek arrival is the single easiest win.
Preparing pays off in a month like this: timed-entry tickets and pre-booked tours turn the queue time into sightseeing time. see the options →
Pack for cold — around 14°C by day.
The one thing you wear all day, every day of the trip.
See walking shoes →
Cold shortens a battery's working life, and the phone holds the tickets.
See power banks →
How busy is London in April?
The busiest days are the 4th, 5th, 6th and 7th, and 8 more. Away from those, most days sit Calm. The calmest stretch is the 12th–23rd.
Ships call on 7 of 30 days, a typical call day carrying at least 998 guests — real, but a secondary part of the crowd here; the season moves the needle more.
The month is not one thing: its lightest day sits at 27% of the year and its heaviest at 99%, so where you land inside it matters. Daylight runs about 14 hours.
Either side of it, March is far calmer and May is much calmer.
Weekends run heavy — the 3rd, 4th, 10th, 11th, 24th and 25th all sit Busy or Packed. If your dates can flex, a midweek arrival is the single easiest win.
Thu 01 Apr Calm busier than 32% of days here · ⚓1 · Germany school holidays
- Viking Libra — guest capacity 998
Record London on Thu 1 Apr 2027 is forecast Calm. 1 cruise ship scheduled, at least 998 guests at double occupancy. Why: school holidays in Germany. This quiet day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/london/#d-2027-04-01 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Fri 02 Apr Busy busier than 77% of days here · ⚓1 · Germany school holidays · Ideal Home Show 2027
- Viking Vela — guest capacity 998 02:00–?
Record London on Fri 2 Apr 2027 is forecast Busy. 1 cruise ship scheduled, at least 998 guests at double occupancy. Why: school holidays in Germany; Ideal Home Show 2027. Nearest calmer day: Thu 1 Apr (Calm). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/london/#d-2027-04-02 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Sat 03 Apr Busy busier than 76% of days here · ⚓1 · Germany school holidays · Ideal Home Show 2027
- Viking Vela — guest capacity 998
Record London on Sat 3 Apr 2027 is forecast Busy. 1 cruise ship scheduled, at least 998 guests at double occupancy. Why: school holidays in Germany; Ideal Home Show 2027. Nearest calmer day: Thu 1 Apr (Calm). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/london/#d-2027-04-03 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Sun 04 Apr Packed busier than 99% of days here · Germany school holidays · Ideal Home Show 2027 · London Landmarks Half Marathon
Record London on Sun 4 Apr 2027 is forecast Packed. Why: school holidays in Germany and France; Ideal Home Show 2027; London Landmarks Half Marathon. Nearest calmer day: Sat 3 Apr (Busy). The day in full, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/london/#d-2027-04-04 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Mon 05 Apr Packed busier than 99% of days here · Germany school holidays · IFE - International Food & Drink Event 2027 (Food, Drink & Hospitality Week) · Ideal Home Show 2027
Event on this day
IFE - International Food & Drink Event 2027 (Food, Drink & Hospitality Week)
5–7 Apr 2027Record London on Mon 5 Apr 2027 is forecast Packed. Why: school holidays in Germany and France; IFE - International Food & Drink Event 2027; Ideal Home Show 2027. Nearest calmer day: Sat 3 Apr (Busy). The day in full, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/london/#d-2027-04-05 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Tue 06 Apr Packed busier than 99% of days here · Germany school holidays · IFE - International Food & Drink Event 2027 (Food, Drink & Hospitality Week) · Ideal Home Show 2027
Event on this day
IFE - International Food & Drink Event 2027 (Food, Drink & Hospitality Week)
5–7 Apr 2027Record London on Tue 6 Apr 2027 is forecast Packed. Why: school holidays in Germany and France; IFE - International Food & Drink Event 2027; Ideal Home Show 2027. Nearest calmer day: Thu 8 Apr (Busy). The day in full, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/london/#d-2027-04-06 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Wed 07 Apr Packed busier than 99% of days here · ⚓1 · Germany school holidays · IFE - International Food & Drink Event 2027 (Food, Drink & Hospitality Week) · Ideal Home Show 2027
Event on this day
IFE - International Food & Drink Event 2027 (Food, Drink & Hospitality Week)
5–7 Apr 2027- Ambition — guest capacity 1,248 08:00–20:00
Record London on Wed 7 Apr 2027 is forecast Packed. 1 cruise ship scheduled, at least 1,248 guests at double occupancy; ships in port 08:00–20:00. Why: school holidays in Germany and France; IFE - International Food & Drink Event 2027; Ideal Home Show 2027. Nearest calmer day: Thu 8 Apr (Busy). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/london/#d-2027-04-07 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Thu 08 Apr Busy busier than 70% of days here · Germany school holidays · Ideal Home Show 2027
Record London on Thu 8 Apr 2027 is forecast Busy. Why: school holidays in Germany and France; Ideal Home Show 2027. Nearest calmer day: Mon 12 Apr (Calm). The day in full, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/london/#d-2027-04-08 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Fri 09 Apr Busy busier than 70% of days here · Germany school holidays · Ideal Home Show 2027
Record London on Fri 9 Apr 2027 is forecast Busy. Why: school holidays in Germany and France; Ideal Home Show 2027. Nearest calmer day: Mon 12 Apr (Calm). The day in full, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/london/#d-2027-04-09 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Sat 10 Apr Busy busier than 69% of days here · Germany school holidays · Ideal Home Show 2027
Record London on Sat 10 Apr 2027 is forecast Busy. Why: school holidays in Germany and France; Ideal Home Show 2027. Nearest calmer day: Mon 12 Apr (Calm). The day in full, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/london/#d-2027-04-10 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Sun 11 Apr Busy busier than 81% of days here · ⚓1 · France school holidays · Ideal Home Show 2027 · The Boat Race
- Ambience — guest capacity 1,596 08:00–17:00
Record London on Sun 11 Apr 2027 is forecast Busy. 1 cruise ship scheduled, at least 1,596 guests at double occupancy; ships in port 08:00–17:00. Why: school holidays in France; Ideal Home Show 2027; The Boat Race. Nearest calmer day: Mon 12 Apr (Calm). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/london/#d-2027-04-11 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Mon 12 Apr Calm busier than 27% of days here · France school holidays
Record London on Mon 12 Apr 2027 is forecast Calm. Why: school holidays in France. This quiet day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/london/#d-2027-04-12 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Tue 13 Apr Calm busier than 27% of days here · France school holidays
Record London on Tue 13 Apr 2027 is forecast Calm. Why: school holidays in France. This quiet day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/london/#d-2027-04-13 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Wed 14 Apr Calm busier than 27% of days here · France school holidays
Record London on Wed 14 Apr 2027 is forecast Calm. Why: school holidays in France. This quiet day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/london/#d-2027-04-14 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Thu 15 Apr Calm busier than 30% of days here · ⚓1 · France school holidays
- Star Pride — guest capacity 343 09:00–20:00
Record London on Thu 15 Apr 2027 is forecast Calm. Why: school holidays in France. 1 cruise ship scheduled, at least 343 guests at double occupancy; ships in port 09:00–20:00. This quiet day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/london/#d-2027-04-15 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Fri 16 Apr Calm busier than 27% of days here · France school holidays
Record London on Fri 16 Apr 2027 is forecast Calm. Why: school holidays in France. This quiet day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/london/#d-2027-04-16 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Sat 17 Apr Lively busier than 57% of days here · France school holidays · Vaisakhi on the Square
Record London on Sat 17 Apr 2027 is forecast Lively. Why: school holidays in France; Vaisakhi on the Square. The day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/london/#d-2027-04-17 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Sun 18 Apr Calm busier than 30% of days here · France school holidays
Record London on Sun 18 Apr 2027 is forecast Calm. Why: school holidays in France. This quiet day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/london/#d-2027-04-18 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Mon 19 Apr Calm busier than 30% of days here · France school holidays
Record London on Mon 19 Apr 2027 is forecast Calm. Why: school holidays in France. This quiet day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/london/#d-2027-04-19 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Tue 20 Apr Calm busier than 30% of days here · France school holidays
Record London on Tue 20 Apr 2027 is forecast Calm. Why: school holidays in France. This quiet day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/london/#d-2027-04-20 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Wed 21 Apr Calm busier than 30% of days here · France school holidays
Record London on Wed 21 Apr 2027 is forecast Calm. Why: school holidays in France. This quiet day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/london/#d-2027-04-21 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Thu 22 Apr Calm busier than 30% of days here · France school holidays
Record London on Thu 22 Apr 2027 is forecast Calm. Why: school holidays in France. This quiet day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/london/#d-2027-04-22 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Fri 23 Apr Calm busier than 30% of days here · France school holidays
Record London on Fri 23 Apr 2027 is forecast Calm. Why: France school holidays; Spain public holiday. This quiet day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/london/#d-2027-04-23 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Sat 24 Apr Packed busier than 99% of days here · ⚓1 · France school holidays · TCS London Marathon (first two-day edition)
Event on this day
TCS London Marathon (first two-day edition)
24–25 Apr 2027The biggest marathon crowds in the world, and for the first time spread over a whole weekend: runners from Greenwich to Westminster on both the Saturday and the Sunday.
- Ambience — guest capacity 1,596 08:00–17:00
Record London on Sat 24 Apr 2027 is forecast Packed. 1 cruise ship scheduled, at least 1,596 guests at double occupancy; ships in port 08:00–17:00. Why: school holidays in France; TCS London Marathon. Nearest calmer day: Fri 23 Apr (Calm). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/london/#d-2027-04-24 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Sun 25 Apr Packed busier than 99% of days here · France school holidays · TCS London Marathon (first two-day edition)
Event on this day
TCS London Marathon (first two-day edition)
24–25 Apr 2027The biggest marathon crowds in the world, and for the first time spread over a whole weekend: runners from Greenwich to Westminster on both the Saturday and the Sunday.
Record London on Sun 25 Apr 2027 is forecast Packed. Why: school holidays in France; TCS London Marathon. Nearest calmer day: Mon 26 Apr (Calm). The day in full, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/london/#d-2027-04-25 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Mon 26 Apr Calm busier than 28% of days here · France school holidays
Record London on Mon 26 Apr 2027 is forecast Calm. Why: school holidays in France. This quiet day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/london/#d-2027-04-26 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Tue 27 Apr Calm busier than 28% of days here · France school holidays
Record London on Tue 27 Apr 2027 is forecast Calm. Why: school holidays in France. This quiet day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/london/#d-2027-04-27 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Wed 28 Apr Calm busier than 28% of days here · France school holidays
Record London on Wed 28 Apr 2027 is forecast Calm. Why: school holidays in France. This quiet day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/london/#d-2027-04-28 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Thu 29 Apr Calm busier than 28% of days here · France school holidays
Record London on Thu 29 Apr 2027 is forecast Calm. Why: school holidays in France. This quiet day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/london/#d-2027-04-29 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Fri 30 Apr Calm busier than 28% of days here · France school holidays
Record London on Fri 30 Apr 2027 is forecast Calm. Why: school holidays in France. This quiet day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/london/#d-2027-04-30 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Which week of April is quietest in London?
Late April is the month's quietest stretch in London — the typical day at 29%, against 76% in early April.
Can't move the dates? How to avoid the worst crowds
- Need flexibility? The 12th–23rd is the month's calmest stretch — the easiest window to move around in.
- On the busy days, the walk-up queues for the big sights are the biggest time-sink — a timed-entry ticket skips them, which is where a busy month is won or lost.
Travelling on a busy day?
Timed-entry and skip-the-line tickets turn queue time into sightseeing time — sort them before you fly.
April weather in London
Mild — around 14°C / 57°F, with a light jacket for the evenings, with rain on about 8 days, so keep a layer handy.
Worth booking the marquee sights ahead for the busy days, but you can keep the rest of the trip flexible.
More about London in April
Based on: UK's public holidays · school vacations across France and Germany · the official overseas-visits pattern (ONS, measured 2021–2023; UK national curve) · five years of weather records (2019–2023) · confirmed event dates · the published cruise schedule
Every figure is recomputed nightly from real cruise schedules, public and school holidays, and long-run climate normals. Gaps are shown, not filled.
